Electrophotography

Printing Method

Electrophotography is a digital printing process that uses electrostatic charging and dry or liquid ink for printing. First, a selenium-coated drum or a belt is electrostatically charged by a corona. When light exposes from a light source (like a laser or flash), the charge on the drum becomes neutralized. Either the positive or the negative image areas are illuminated depends to the technique the digital printer uses. In the next step toner is applied on the drum. The toner carries also a charge, so it adheres to the unexposed areas of the drum. Now, the image is transferred to the substrate and is fused with heat. For liquid-toner systems, evaporation of the liquid is responsible to dry the image.

Machine Examples

HP Indigo 7600 Digital Press (Card 6A)

HP Indigo 7600 Digital Press (Card 6A)
CategoriesIndexBackground information
max. printing width317 mm 
max. colors7 
space requirement13 m² 
variety of materials3paper, cardboard, plastic foil
max. printing output530 m²/h120 DIN A4/min
pantone color matching97 % 

Kodak NexPress SX3900 (Card 6B)

Kodak NexPress SX3900 (Card 6B)
CategoriesIndexBackground information
max. printing width340 mm 
max. colors5 
space requirement12 m² 
variety of materials3paper, cardboard, plastic foil
max. printing output490 m²/h131 DIN A4/min
max. numbers of multibits8 

Océ ColorStream 10000 Flex (Card 6C)

Océ ColorStream 10000 Flex (Card 6C)
CategoriesIndexBackground information
max. printing width482 mm 
max. colors5 
space requirement21 m² 
variety of materials2paper, cardboard
max. printing output1.723 m²/h168 DIN A4/min
weight of printing modul2 t 

Xerox iGen4 Press (Card 6D)

Xerox iGen4 Press (Card 6D)
CategoriesIndexBackground information
max. printing width362 mm 
max. colors4 
space requirement13 m² 
variety of materials3paper, cardboard, plastic foil
max. printing output410 m²/h110 DIN A4/min
max. resolution4.800 dpi